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CVE-2006-6585

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local...

6.4 MediumFix available

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Exploit likelihood

1.08%Up 0.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.4

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
CVE-2006-6585
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Updated
2026-11-02
CVE List No score

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
CVE-2006-6585
Updated
2026-11-02
EUVDEUVD-2006-6568 No score

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
EUVD-2006-6568
Updated
2026-11-03
GitHub AdvisoriesGHSA-626g-w2m9-f8hr No score

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local...

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
GHSA-626g-w2m9-f8hr
Updated
2026-11-02
OSV No score

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
CVE-2006-6585
Updated
2026-11-02
OSVDEBIAN-CVE-2006-6585 No score

The Extensions manager in Mozilla Firefox 2.0 does not properly populate the list of local extensions, which allows attackers to construct an extension that hides itself by finding its name in the list and then calling RemoveElement, as demonstrated by the FFsniFF extension. NOTE: it was later reported that 3.0 is also affected.

Record
DEBIAN-CVE-2006-6585
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
firefox-esr
Debian:12
before 45.0esr-1
45.0esr-1
firefox-esr
Debian:13
before 45.0esr-1
45.0esr-1
firefox-esr
Debian:14
before 45.0esr-1
45.0esr-1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2006-6585 is a medium vulnerability (CVSS 6.4) in Mozilla Firefox, published December 15, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.08%, the 65th percentile. Fixed in firefox-esr 45.0esr-1.

References

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